United States Testing Company, Inc.
1341 North 108th East Avenue á Tulsa, Oklahoma 74116 á
918-437-8333 á Fax 918-437-8487 REPORT OF TEST CLIENT:
World Wide Stone Corporation Report No.: EN94-0103R
5236 South 40th Street Revised: 10/28/94
Phoenix, AZ 85040
Attn: Frank Cunningham
Original Issue: 6/7/94
SUBJECT: Limestone Evaluation.
PROCEDURE: The specimens were tested for absorption and
specific gravity, abrasion index, and coefficient
of friction in accordance with ASTM Methods C 97-83 (1988).
C 241.85, and C 1028 respectively. The results are compared with
ASTM Specification C 568-89.
SUMMARY OF RESULTS:
Material: Limestone (medium-density) Requirement
Water Absorption, %: 1.01 7.5, max.
Specific Gravity: 2.520 ---
Density, lbs/ft3: 157.03 135, min.
Abrasion Index: 14.42 10, min.
Coefficient of Friction: See test data and results on the following
pages.
CONCLUSION:
The material does comply with the requirements of ASTM Specification
C 568-89 for water absorption.
Dale E. Holloway, Manager
Product Evaluation United States Testing Company, Inc. Absorption
& Specific Gravity (ASTM C 97): Specimen: 1 2 3 Average
Dry Weight, g: 341.91 338.90 344.62 ---
Wet Weight, g: 345.28 342.53 348.03 ---
Volume, cm3: 135.49 134.84 136.41 ---
Absorption, %: .98 1.07 .98 1.01
Specific Gravity: 2.520 2.510 2.520 2.520
Density, lbs/ft3: 157.24 156.62 157.24 157.03 Abrasion Index (ASTM
C241): Specimen: 1 2 3 Average
Thickness: 1.007 1.003 1.005 ---
Average Weight, g: 165.53 169.85 169.80 ---
Weight Loss, g: 2.28 1.71 1.86 ---
Abrasion Resistance Index: 11.83 16.42 15.01 14.42
Bulk Specific Gravity: 2.493 2.589 2.574 2.552 United States Testing
Company, Inc.
Coefficient of Friction (ASTM C 1028)
Dry, as Received:
Cal. Neolite Leather Rubber Sensor Wgt.,g 323.09 323.09 538.20
429.13
Normal Load --- 50.71 51.19 50.95
Max Force,lbs. Spec: 1 2 3 1 2 3 1 2 3
Direction 1 42 42 45 46 43 42 43 43 59 60
Direction 2 42 44 48 44 45 43 43 43 59 55
Direction 3 42 44 46 48 47 43 46 44 54 56
Direction 4 42 37 41 42 46 44 41 46 54 58
Average Force 42.0 43.92 43.83 52.50
Coeff/Friction 0.83 0.87 0.86 1.03
Correction -.12 -.12 --- ---
Corrected C/F 0.71 0.75 --- ---
Wet, as Received:
Cal. Neolite - Leather - Rubber - Sensor Wgt.,g 323.09 323.09
538.20 429.13
Normal Load --- 50.71 51.19 50.95
Max Force,lbs. Spec: 1 2 3 1 2 3 1 2 3
Direction 1 40 40 46 52 47 34 43 44 48 48
Direction 2 40 49 42 50 40 45 44 44 49 50
Direction 3 40 43 44 49 42 38 48 48 52 50
Direction 4 40 42 42 48 42 43 49 48 44 50
Average Force 40.00 45.58 42.92 47.92
Coeff/Friction 0.79 0.90 0.84 0.94
Correction -.32 -.32 --- ---
Corrected C/F 0.47 0.58 --- ---
United States Testing Company, Inc.
EN94-0103R World Wide Stone Corporation 10/28/94 Page 4 of 4
Coefficient of Friction (ASTM C 1028)
Dry, Renovated:
Cal. Neolite Leather Rubber Sensor Wgt.,g 323.09 323.09 538.20
429.13
Normal Load 50.71 50.71 51.19 50.95
Max Force,lbs. Spec: 1 2 3 1 2 3 1 2 3
Direction 1 41 43 46 46 36 46 46 62 64 62
Direction 2 40 46 50 47 44 46 46 60 65 63
Direction 3 43 39 50 49 40 48 41 64 63 66
Direction 4 44 46 46 49 38 40 44 58 60 62
Average Force 42.00 46.42 41.67 62.33
Coeff/Friction 0.83 0.92 0.81 1.22
Correction -.12 -.12 --- ---
Corrected C/F 0.71 0.80 --- ---
Wet, Renovated:
Cal. Neolite Leather Rubber Sensor Wgt.,g 323.09 323.09 538.20
429.13
Normal Load 50.71 50.71 51.19 50.95
Max Force,lbs. Spec: 1 2 3 1 2 3 1 2 3
Direction 1 48 42 47 41 50 42 44 48 50 53
Direction 2 43 44 47 45 46 52 45 50 50 53
Direction 3 46 42 42 48 42 44 53 48 53 49
Direction 4 45 46 50 44 52 50 50 48 54 54
Average Force 45.50 44.83 47.50 50.83
Coeff/Friction 0.90 0.88 0.93 1.00
Correction -.43 -.43 --- ---
Corrected C/F 0.47 0.46 --- ---
